The Red Hot Chili Peppers, inducted into the Rock and Roll Hall of Fame earlier this year, are set to play the Austin City Limits festival.

The last big piece of the seasonal music puzzle falls into place with today’s announcement of the lineup for the Austin City Limits festival, set for Oct. 12-14 in the Texas capital’s Zilker Park. Along with Coachella in the spring, A.C.L. bookends the warm-weather schedule of major U.S. festivals. Not surprisingly, A.C.L.’s 2012 headliners overlap with those of other major festivals that annually vie for a small handful of acts at the top of the rock and pop food chain.

This year’s A.C.L. headliners include Red Hot Chili Peppers (also playing Bonnaroo in Manchester, Tenn., June 7-10, and Lollapalooza, Aug. 3-5 in Chicago); Neil Young & Crazy Horse (also at Outside Lands in San Francisco, Aug. 10-12); the Black Keys (played Coachella, will play Lollapalooza); and Jack White (hitting Sasquatch, May 25-28 in George, Wash., Outside Lands and Lollapalooza).

The lineup also mirrors the rise of electronic dance music, or E.D.M. Given the explosive growth of D.J.-driven gatherings such as the Electric Daisy Carnival, E.D.M. acts are now must-have accessories for rock-oriented festivals. Though A.C.L. has long prided itself on genre diversity, its roots reside in the Americana of its namesake PBS show. This year, A.C.L. is giving prominent billing to Swedish DJ Avicii and dubstep star Bassnectar. (Those two will also be at Lollapalooza, which like A.C.L. is produced by Austin-based C3 Presents.) Meanwhile, Bumbershoot (Seattle, Sept. 1-3), Outside Lands and Bonnaroo have recruited dubstep phenomenon Skrillex to the mix).

The talent buyers who build festival lineups generally roll their eyes at the complaint that the events seem increasingly homogenous at the headliner level. They argue that a festival’s core identity is defined by the rank and file acts that fill out the daytime slots and perform on the second (or third or fourth) stage. A.C.L. announced about 120 acts today, ranging from veterans like Iggy and the Stooges to younger outfits, such as the War on Drugs.